Ski brake



C. JON ETTE Dec. 14, 1948.

SKI: BRAKE Filed Nov. 8, 1946 a 0 i w 6 4444 mam MW v 0 z i 8 7 7 2 m aa. Z

Patented Dec. 14, 1948 SKI BRAKE Charles J onette, Dawson City, Yukon,Canada Application November 8,1946, Serial No. 708,655

1 Claim. (Cl. 280-1 1.13)

l 1 This invention relates to improvements in attachments' for skis, andhas particular reference to attachments of this type designed to preventbackward movement of the skis while the skier is climbing a slope.

The primary object of the invention is to provide an effectiveattachment of this type which will give the skier the needed assistancementioned above, at the same time permitting forward movement without aretarding effect on the part of the attachment.

Another important object provide an attachment of this character whichis simple in construction, easily assembled, inexpensively manufactured,and which will, nevertheless, fulfill all the necessary functions ofattachments of this type.

With the foregoing and other objects in view which will appear as thedescription proceeds, the

invention consists of certain novel details of construction andcombinations of parts, hereinafter more fully described and pointed outin the claim, it being understood that changes may be made in theconstruction and arrangement of the parts without departing from thespirit of the invention as claimed.

Referring to the drawing:

Figure 1 is a top plan view of the invention mounted upon a ski, the skibeing partly cut away. 1

Figure 2 is a sectional view taken on line 2-2, of Figure 1, looking inthe direction of the arrows, the device being shown in operativeposition.

Figure 3 is a side elevation of the device mounted upon a ski, the skibeing partly cut away, and the device being shown in operative position,the dotted line showing the device in the position assumed thereby,during the forward movement of the ski.

Referring to the drawing in'detail, the device is affixed to a ski 5,preferably a short distance forward of the ski harness, inorder toeliminate the possibility of interference between the harness or theskiers boots, and the device. The device embodies a flat base plate 6,which is fixedly secured to the top of the ski 5 by screws 1 or likesecuring means, the said base plate having raised ends formingtransversely alined stop projections 8 which extend laterally andhorizontally beyond the sides of the ski.

The invention further embodies flat blade members pivotally mounted onthe sides of the ski 5 by screws 9 or the like, said-blade memberscomprising arms l having sides parallel to the sides of the ski anddisposed edgewise of the base plate. Said blade members are also formedwith wide blades H at their lower ends, the sides of which are disposedat right angles to the sides of the arms I0. These blades II are, inaddition, angled rearwardly to a slight degree, a d have straight sharplower edges.

of the device is to v When the blade members are in their verticalpositions, the arms In have their upper ends projectin above the top ofthe ski 5, with the rear edges of said upper ends in edgewise contactwith the stop projections 8, formed at the ends of the base plate 6, theblades II projecting below the bottom of the skis. The vertical positionof the blade members is their operative position, and this position isautomatically assumed whenever the ski 5 begins to slip backwardly. Insuch an eventuality, the sharp lower edges of the blades II becomeautomatically engaged with the snow, and prevent further rearwardmovement of the ski 5. Upon becoming so engaged, the blade member ishalted in a vertical position by reason of its upper end being broughtinto contact with the stop projection 8.

During forward movement of the ski, the blade ll remains retracted asindicated by the broken lines in Figure 3. In this connection, it shouldbe noted that the blade member is mounted above its center of balance,so that the lower fiatwise thereon, the ends of the base plate beinglaterally extended beyond the sides of the ski whereby one edge of eachend will constitute a stop, fiat blade members. pivotally mounted on thesides of the ski and disposed fiatwise of said sides, the lower ends ofthe blade members overbalancing'the upper ends, the upper ends of theblade members extending above the top of the ski for edgewise engagementbetween the stops and blade members when the blade members are swung inone direction, and wide blades rigid with the lower ends of the blademembers and disposed in plane perpendicular to the planes of the blademembers, the blades having straight sharp lower edges for engagementwith a supporting surface.

CHARLES JONET'IE.

REFERENCES CITED The following references are of record in the file ofthis patent: I

UNITED STATES PATENTS

